American Staffordshire Terrier vs Mastiff
Terrier · Medium vs Working · Giant
American Staffordshire TerrierMedium
A confident, smart, good-natured terrier — the AmStaff, larger cousin of the Staffy.
Weight: 55–70 lbsLifespan: 12–16 years
MastiffGiant
A courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs.
Weight: 160–230 lbsLifespan: 6–10 years
Quick take
- • Mastiff is the larger breed at 160–230 lbs (males) vs 55–70 lbs for the American Staffordshire Terrier.
- • The American Staffordshire Terrier typically lives longer (12–16 years).
- • The American Staffordshire Terrier has higher daily energy needs.
- • The American Staffordshire Terrier is generally more trainable.
Side-by-side traits
| Trait | American Staffordshire Terrier | Mastiff |
|---|---|---|
Group | Terrier | Working |
Size | Medium | Giant |
Origin | USA | England |
Height (male) | 18–19" | 30" |
Height (female) | 17–18" | 27.5" |
Weight (male) | 55–70 lbs | 160–230 lbs |
Weight (female) | 40–55 lbs | 120–170 lbs |
Lifespan Average expected lifespan. | 12–16 years | 6–10 years |
Energy level Daily activity needs. | High (4/5) | Low (2/5) |
Trainability How quickly the breed learns commands. | High (4/5) | Moderate (3/5) |
Intelligence Problem-solving ability. | High (4/5) | Moderate (3/5) |
Exercise needs Daily physical activity required. | High (4/5) | Low (2/5) |
Shedding Lower = less hair around your home. | Moderate (3/5) | Moderate (3/5) |
Grooming effort Brushing, bathing, professional grooming. | Very Low (1/5) | Very Low (1/5) |
Drooling Lower = drier face and furniture. | Low (2/5) | Very High (5/5) |
Barking How vocal the breed is. | Low (2/5) | Low (2/5) |
Good with kids | High (4/5) | High (4/5) |
Good with other dogs | Low (2/5) | Moderate (3/5) |
Good with strangers | Moderate (3/5) | Moderate (3/5) |
Protectiveness Watchdog tendencies. | High (4/5) | Very High (5/5) |
Adaptability Apartment / new environment tolerance. | High (4/5) | Moderate (3/5) |
Coat length | short | short |
Hypoallergenic Lower-shedding, less dander. | No | No |
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About the American Staffordshire Terrier
The American Staffordshire Terrier is a confident, smart, good-natured terrier — the AmStaff, larger cousin of the Staffy. Originally from USA, this medium terrier breed typically weighs 55–70 lbs and lives 12–16 years. Breeders describe them as confident, smart, good-natured.
About the Mastiff
The Mastiff is a courageous, dignified, good-natured giant — one of the most ancient breeds, formerly war dogs. Originally from England, this giant working breed typically weighs 160–230 lbs and lives 6–10 years. Breeders describe them as courageous, dignified, good-natured.
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American Staffordshire Terrier health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Heart disease
- • Skin allergies
- • Cerebellar ataxia
Mastiff health
Common health concerns reported in this breed:
- • Hip dysplasia
- • Bloat
- • Heart disease
- • Cancer